﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System;

namespace Xceed.Silverlight.DataGrid
{
  internal class ColumnBackgroundControlWrapper : ColumnElementWrapper
  {
    public ColumnBackgroundControlWrapper( ColumnBackgroundControl panel )
      : base( panel )
    {
    }

    public ColumnBackgroundControl ColumnBackgroundControl
    {
      get
      {
        return ( ColumnBackgroundControl )this.Child;
      }
    }

    internal override bool IsRecycled
    {
      get
      {
        return m_isRecycled;
      }
      set
      {
        if( m_isRecycled != value )
        {
          m_isRecycled = value;
          this.UpdateVisibility();
        }
      }
    }

    internal void NotifyIsLastLevelUpdated()
    {
      this.UpdateVisibility();
    }

    private void UpdateVisibility()
    {
      IColumnElementHost parentHost = this.ColumnBackgroundControl.ParentHost;
      if( parentHost != null )
      {
        this.Visibility = ( m_isRecycled )
        ? System.Windows.Visibility.Collapsed
        : System.Windows.Visibility.Visible;
      }
    }

    private bool m_isRecycled;

  }
}
